I start hundreds of plants each spring and use this on all of them. A few times I neglected to use it and the tomato plants took on that purple color-they became a healthy green within days of applying PHC

For a few years now this has been my go-to seed starting fertilizer. It works to develop very strong, vibrant, and healthy seedlings. Strong seedlings which develop into healthy plants. Zero wilt, droop, disease.Recently I've begun using for our houseplants and this product is producing healthy plants unlike other houseplant fertilizers I've used. New growth. Strong stocks, stems, healthy leaf. Wonderful product. Happy I came across it and Gardener's Supply sells it.

I have been using PHC for seedlings for many years. It is exactly what seedlings need to get off to a great start. It is easy to mix and is odor free. I also use it for my houseplants with the same great results. I recommend it highly.

I enjoy watching the plants respond so visibly and quickly.The plants love this stuff, so the nuisance factors of packaging and mixing are tolerable for me.When you mix the powder with water, there is some unpleasant odor, but it soon dissipates.Sometimes, I give the plants a weaker concentration when their 'diet' is too rich. How do I know? I don't really, but the plants seem to .... I appreciate that this dry product won't evaporate and over-concentrate the way liquid fertilizers do in this Southwest climate. I know exactly what I'm giving my little ones -- or I would if a decent measuring device were supplied.

I agree with others who have commented on the packaging. The foil pouch inside the plastic jar is not easily resealable. A ziplock or other sealing device would make this perfect. Good product on the inside though!

Have used PHC for 3 or 4 years and have gotten great results. But be warned: do not continue use after plant is growing well, as phosphorous (the middle #) can block the uptake of iron by the plant and cause leaf cholrosis (yellowing of leaves) and maybe eventually kill the plant.

Learn the best way to start your own tomato seedlings. Quick to germinate and grow, tomato seeds are best sown indoors about six weeks before your average last frost date.
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